JCONCEPTS The Hold - 63mm ODJConcepts jumped out with a new aggressive tread pattern for the 1. 0 crawling enthusiast. The Hold was designed from the ground up as a carved and chiseled design to handle a variety of scale off road terrain. The large horizontal traction bars put a Hold on ranging features from dirt, asphalt, grass, mud, rock, and clay. At the tip of the tread, the downward progression starts and reveals another flat bar of gripping pattern to provide offset